Critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway products, several intrusions in Finland

The National Cyber Security Centre Finland (NCSC-FI) has received reports of active exploitation of critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway products in Finland. Systems affected by the vulnerabilities must be updated to patched software versions without delay. Organisations must also check their environments for possible exploitation attempts and intrusions.